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Tango Archiving Service

Tango Archiving Service. Tango Archiving Service. Since the last meeting Archiving core new features and improvements GUI applications new features and improvements Deployment Missing features. Since the last meeting. Archiving core new features

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Tango Archiving Service

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  1. Tango Archiving Service Tango Meeting (Grenoble, Sep 2006)

  2. Tango Archiving Service • Since the last meeting • Archiving core new features and improvements • GUI applications new features and improvements • Deployment • Missing features Tango Meeting (Grenoble, Sep 2006)

  3. Since the last meeting • Archiving core new features • Supervision Device is available (HDB/TDB ArchivingWatcher) • Diagnosis tool : detecting abnormal archiving interruption • Recovery : reactivate archiving on the failed attributes • Archiving service configuration (HDB and TDB) : To be able to dedicate a given archiver to a fixed set of attributes • Via the HDB/TDB Archiver Properties update • Make ArchivingManager exclude these attributes from load balancing • SnapExtractor is now ready Tango Meeting (Grenoble, Sep 2006)

  4. Since the last meeting • Archiving core improvements • Full management of scalar and spectrum types (HDB and TDB) • TDBArchiver behavior enhancements for performance issues • The data files are still created by the Archiver but their import is assigned to database • Threaded device startup • Local error logging Tango Meeting (Grenoble, Sep 2006)

  5. GUI Applications Mambo : HDB & TDB Archiving Bensikin : Snapshotting Tango Meeting (Grenoble, Sep 2006)

  6. Since the last meeting • GUI Application : Mambo new features • Dedicated Archivers (HDB and TDB) Tango Meeting (Grenoble, Sep 2006)

  7. Since the last meeting • GUI Application : Mambo new features (follow-up) • Can be opened either in Viewer, Expert or Expert+ mode • Viewer : only View Configurations • Expert : Archiving and View configurations • Expert+ : Export mode plus right on dedicated archivers usage Tango Meeting (Grenoble, Sep 2006)

  8. Since the last meeting • GUI Application : Mambo improvements • Attributes selection via Tree or Table Tango Meeting (Grenoble, Sep 2006)

  9. Since the last meeting • GUI Application : Mambo improvements (follow up) • Data cache management • Filled at startup with AMT Tables information • Manual refresh • Tree management • All trees are collapsed at startup • Manual expand Tango Meeting (Grenoble, Sep 2006)

  10. Since the last meeting • GUI Application : Bensikin new features • Can be opened either in Expert or non Expert mode • Nonexpert : cannot create snapshot models • Expert : all the rights • GUI Application : Bensikin improvements • Spectrum type is handled Tango Meeting (Grenoble, Sep 2006)

  11. Deployment • Deployed Configuration • 1 Oracle server (Linux) for TDB • 1 Oracle server (Linux) for HDB and Snapshot • All archivers devices deployed on one server (Linux) • Tango 5.3.4 distrib (with TangORB 4.9.2) • On HDB server • 1 HdbExtractor, 1 ArchivingManager, 1 HdbArchivingWatcher • 1 SnapArchiver, 1 SnapManager • On TDB server • 1 TdbExtractor , 1 TdbArchivingWatcher • On Archivers server • 10 Hdbarchivers (with 5 device instances each), • 10 Tdbarchivers (with 5 device instances each), • HDB Archiving period ranging from 10 to 60s for 2000 attributes • TDB Archiving not yet fully deployed Tango Meeting (Grenoble, Sep 2006)

  12. Deployment • Deployed Configuration (follow up) • Load balancing • Each HdbArchiver : in charge of ~40 attributes • Each Tdbarchiver : in charge of ~(10-20) attributes • Major encountered problems • Oracle is very disk space consuming when handling spectrums • Still under investigation • Future Configuration (next week) • Support of 6000 attributes by the Hdb and Tdb Archivers Tango Meeting (Grenoble, Sep 2006)

  13. Missing features • Under development • Under sampling extracted data for View display • Validation of the dedicated archivers mechanism • Potential corrections due to large number of attributes to be archived • Not yet planned • Re-synchronize Archiving behavior between Oracle and MySql databases • Handling image attributes ? Tango Meeting (Grenoble, Sep 2006)

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